B5N2

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This aircraft page is in two sections:
World War II aircraft
B5N2
B5N2
Variant of B5N
Nickname Kate
Type Bomber
Country of origin Japan
Manufacturer Nakajima
Crew 3
Dimensions Wing span 15.52 m (50' 11")
Length 10.30 m (33' 10")
Height 3.70 m (12' 2")
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The B5N2 in World War II

The Nakajima B5N (Japanese: 中島 B5N, Allied reporting name: Kate) was the Imperial Japanese Navy's standard torpedo bomber for the first years of World War II. While the B5N was substantially faster and more capable than its Allied counterparts, the TBD Devastator and Fairey Swordfish, it was close to obsolescence by the time of the Pearl Harbor Attack. Nevertheless, the B5N operated throughout the whole war. Although primarily used as a carrier-based aircraft, it was also used as a land-based bomber on occasions. The B5N had a crew of 3: pilot, navigator/bombardier/observer, and radio operator/gunner.

Development

The B5N was designed by a team led by Katsuji Nakamura in response to a 1935 specification by the Navy for a torpedo bomber to replace the Yokosuka B4Y. Internally designated Type K by Nakajima, it successfully competed with the Mitsubishi B5M for a production contract. The first prototype flew in January 1937 and was ordered into production soon afterwards with the full designation Type 97 Carrier Attack Bomber (九七式艦上攻撃機).

The B5N soon saw combat, first in the Sino-Japanese War, where combat experience revealed several weaknesses in the original B5N1 production model. These were mainly concerned with the lack of protection that the design offered its crew and fuel tanks. Keen to maintain the high performance of the type, the Navy was reluctant to add weight in the form of armour, and instead looked to obtaining a faster version of the aircraft in the hopes of out-running enemy fighters. The B5N2 was given a much more powerful engine, and various modifications were made to streamline it. Although its performance was only marginally better, and its weaknesses remained unremedied, this version replaced the B5N1 in production and service from 1939. It was this version that would be used by the Navy in the attack on Pearl Harbor. Apart from this raid, the greatest successes of the B5N2 were the key roles they played in sinking the US Navy aircraft carriers Yorktown, Lexington and Hornet.

The B5N served as the basis for a follow-on design, the Nakajima B6N, which eventually replaced it in front-line service. The B5N continued to fly in secondary roles, such as training, target towing, and anti-submarine warfare. Some of the aircraft used for this latter purpose were equipped with early radars and magnetic anomaly detectors. B5Ns were also used as bombers during the unsuccessful defence of the Philippines in October 1944.

Altogether, around 1,150 B5N aircraft were built, of which not a single complete example exists today.

Unit Deployment

External Links

Aces High II aircraft
B5N2
Nickname Kate
Type Bomber
Crew 3
Aces High II loadout options
Package 1 1x 7.7mm MG, 791 rounds
(rear cockpit)
Options 1x 800kg torpedo
3x 250kg (550lb) bombs
Aces High II Main Arenas
Earliest MA Early War
Typical perk cost 0 (Late War)
ENY value 40 (Late War)
Available on carrier yes
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The B5N2 in Aces High II

Engine Power

Aces High II Performance Charts

speed chart climb chart

Firepower

Maneuverability

Fighting in the B5N2

Fighting against the B5N2

External Links

Soda's Aircraft Evaluations